Electromechanical properties of a textured ceramic material in the (1 − x)PMN-xPT system: Simulation based on the effective-medium method
- 13 November 2008
- journal article
- Published by Pleiades Publishing Ltd in Physics of the Solid State
- Vol. 50 (11), 2150-2156
- https://doi.org/10.1134/s1063783408110243
Abstract
A complete set of dielectric, piezoelectric, and elastic parameters for the textured ceramic material 0.67PMN-0.33PT is calculated by the self-consistency method with due regard for the anisotropy and piezoelectric activity of the medium. It is shown that the best piezoelectric properties corresponding to those of a single crystal are observed for the ceramic material with a texture in which all crystallites are oriented parallel to the [001] direction of the parent perovskite cubic cell. The simplest models of the polarization of an untextured ceramic material with a random initial orientation of crystallites are considered. The results obtained are compared with experimental data.Keywords
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